The 2023 World Rugby U20 Trophy was the thirteenth edition of the second-tier age-grade rugby competition.

[1] This Under 20 competition (alongside the Championship) was the first global U20's competitions held since 2019, with the 2020 edition in Italy cancelled due to the COVID-19 pandemic and the ongoing instability in the world following the pandemic delaying the return of the competition.

The tournament was held at the 15,000 capacity Nyayo National Stadium in Nairobi.

The hosts Kenya and the 2019 World Rugby Under 20 Championship relegation country Scotland qualified automatically.

The remaining six countries qualified through a qualification process in regional competitions (North America, South America, Europe, Africa, Asia, Oceania).